Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
American Mineralogist Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
American Mineralogist; July 2004; v. 89; no. 7; p. 1056-1060
© 2004 Mineralogical Society of America
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (6)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Prasad, P.S.R
Right arrow Articles by Sarma, L.P.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

A near-infrared spectroscopic study of hydroxyl in natural chondrodite

P.S.R Prasad* and L.P. Sarma

1 National Geophysical Research Institute, Hyderabad 500 007, India

Correspondence: * E-mail: psrprasad{at}ngri.res.in

A chondrodite from a marble from Ambasamudram near the Archankovil shear zone, Kerala Khondalite Belt, India, was characterized by powder X-ray diffraction (XRD), electron microprobe and Fourier Transform Infrared (FTIR) spectroscopic techniques. FTIR measurements were carried out in the range 400–10000 cm–1, to record both fundamental and overtone modes. A set of absorption peaks at 3393, 3411, 3561, 3571, 3650, and 3685 cm–1 were observed in the fundamental OH-stretching mode region. In the combination-mode region modes observed at 4103, 4328, and 4440 cm–1 indicate that the majority of M sites in this chondrodite are occupied by Mg. The modes at 3650 and 4520 cm–1 could be due to silanol (Si-OH) groups. A definite band was also observed at 5072 cm–1, whose origin presently is not clear. A weak overtone mode of the strongest OH stretching was observed at 6967 cm–1.




This article has been cited by other articles:


Home page
 Eur J MineralHome page
P. S.R. PRASAD, K. S. PRASAD, B. SREEDHAR, and S. R. MURTHY
In-situ FTIR study of dehydration and rehydration mechanisms of natural scolecite
European Journal of Mineralogy, April 1, 2006; 18(2): 265 - 272.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
P.S.R. Prasad, K. S. Prasad, and S. R. Murthy
Dehydration of natural stilbite: An in situ FTIR study
American Mineralogist, October 1, 2005; 90(10): 1636 - 1640.
[Abstract] [Full Text] [PDF]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by Mineralogical Society of America